The gracekeepers
(Book)

"As a Gracekeeper, Callanish administers shoreside burials, laying the dead to their final resting place deep in the depths of the ocean. Alone on her island, she has exiled herself to a life of tending watery graves as penance for a long-ago mistake that still haunts her. Meanwhile, North works as a circus performer with the Excalibur, a floating troupe of acrobats, clowns, dancers, and trainers who sail from one archipelago to the next, entertaining in exchange for sustenance. In a world divided between those inhabiting the mainland ('landlockers') and those who float on the sea ('damplings'), loneliness has become a way of life for North and Callanish, until a sudden storm offshore brings change to both their lives"--Amazon.com.